Solar System, Stars, Navigation

Front

What is the average size and brightness of our sun?

Back

Our sun is average sized and of average brightness.

Front

Which planet has the longest revolution period?

Back

Neptune has the longest revolution period.

Front

What separates the inner planets from the outer planets?

Back

The asteroid belt separates the inner planets from the outer planets.

Front

Why do the sun and constellations appear to move across the sky?

Back

They appear to move because of Earth's rotation on its axis.

Front

What does revolution mean in the context of planets?

Back

Revolution means a complete trip around the sun.

Front

What are the inner planets?

Back

The inner planets are Mercury, Venus, Earth, and Mars.

Front

What are the outer planets?

Back

The outer planets are Jupiter, Saturn, Uranus, and Neptune.

Front

What is the asteroid belt?

Back

The asteroid belt is a region of space between the inner and outer planets filled with rocky debris.

Front

What is Earth's rotation?

Back

Earth's rotation is the spinning of Earth on its axis, which takes about 24 hours.

Front

What is Earth's revolution?

Back

Earth's revolution is the movement of Earth around the sun, which takes about 365 days.